Connected: An Internet Encyclopedia
RFC 1122 - 4.1.3.6 Invalid Addresses

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### 4.1.3.6 Invalid Addresses

A UDP datagram received with an invalid IP source address (e.g., a broadcast or multicast address) must be discarded by UDP or by the IP layer (see Section 3.2.1.3).

When a host sends a UDP datagram, the source address MUST be (one of) the IP address(es) of the host.

Next: 4.1.4 UDP/APPLICATION LAYER INTERFACE

Connected: An Internet Encyclopedia
RFC 1122 - 4.1.3.6 Invalid Addresses